Geology Stuff
Published on Feb 03, 2016
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PRESENTATION OUTLINE
PRECAMBRIAN
- Geologic setting-Starting formation of earth
- Life-toxic atmosphere
- Then explosion of bacteria,algae,fungi
- Climate-glacier event occured
Photo by Ron Schott
CAMBRIAN PERIOD
- Geological setting-continents in western hemisphere
- Life-trilobites and unicellular small organisms
- Climate-generally cold then mild warmer than today
Photo by Joanna Bourne
ORDOVICIAN PERIOD
- Geologic setting:godwanna
- Life:early land mammals and marine invertebrates
- Climate:sea levels at highest and very hot due to c02 strong green house effect
SILURIAN PERIOD
- Geologic setting-glacial melting,sea level decrease and mtn changing
- Life-first fish and macrofossils of terrestrial biota in the form of moss forests
- Climate-more stable
DEVONIAN PERIOD
- Geologic setting-3 continents collided/appalachian mts
- Life-amphibians and brachiapod
- Climate-global cooling
CARBONIFEROUS PERIOD
- Geologic setting-marine floods,drew plates together(erosion)
- Climate-few seasonal changes,tropical humid
- Life-lizards(reptiles),birds,dragon flies,spiders
Photo by brewbooks
PERMIAN PERIOD
- Geological setting-pangea,sandunes,volcanos,ferns swamps
- Climate-seasonal changes,rainfall,moist tropical
- Life-amphibians, seed bearing plants
Photo by ibsut
TRIASSIC PERIOD
- Geological setting-pangea fractures,more higher elevations,volcanos
- Climate-
- Life-early dinosaurs,crocodiles,turtles, trees
Photo by notArt
JURASSIC PERIOD
- Geologic setting-Pangea rotates and breaks apart,mtn forming,water basins
- Climate-dry and warm
- Life-herbovoirss,flying reptiles,fish,squid,ammonites
Photo by Caneles
CRETACEOUS PERIOD
- Geologic setting-Pangea splits,near shore habbitats,mtns pushed up,water basins
- Climate-more pronounced,cooler
- Life-horned dinos,flower plants,ferns
Photo by david_s_carter
CENOZOIC ERA
- Geographic setting-plants adjusted,mtns grew and wore down,plateaus raised
- Climate-warm and humid then cool, multiple ice ages
- Life-insects,land mammals,mastadonss,then humans
Photo by petercat.harris
